Sound-box for talking-machines.



H. SHEBLB. SOUND BOX FOR TALKING MACHINES. APPLIOATION FILED AUG. 25, 1918.

1,102,090, Patenfied June 30,1911

Houston SHEIBLE, or PHILADELPHIA, PENNSYLVANIA.

' "FWD-BOX FOR TALKING-MACHINES.

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Specification of Letters Patent.

Patented June 30, 1914.

Application filed August 25, 1913. Serial No. 786,445.

To all whom it may concern:

Be it known that I, HORACE SHEBLE, a citizen of the United- States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Sound-Boxes for Illalking-Machines, of which thefollowing is a specification.

The object of my invention is to so con-' Figure l is a view, partly inside eleva tion and partly in section, of an ordinary talking machinesound box illustrating the same as designed for use with a record of thelateral-wave type; 'Fig. 2 is a similar view illustrating the sound boxas adapted for use in connection with a record of the hill-and-valleytype, and Fig. 3 is an enlarged view of the converting attachment shownin Fig. 2.

.In Figs. 1 and 2 of the drawing, 1 represents the casing of the soundbox, 2 the diaphragm thereof, and 3 the usual stylus lever pivotallymounted upon the casing '1 and having one of its arms connected to thediaphragm 2, the other arm being bored for the reception of the stylus 4usually employed in connection with a record of the lateral-wave type,said stylus being secured in position by means of a clamping screw 5, orothersuitable means. In order to permit such sound box, without changingthe angular position of the diaphragm 2, to be em- )loyed in connectionwith a record of the hill-and-valley type I prefer to use, in place ofthe stylus l, an attachment such as shown in Figs. 2 and 3, saidattachment consisting of an arm 6 having near one end an upwardlyextending pin 7 and at the other end a downwardly projecting stud 8carrying a sapphire point 9 such as is usually employed in connectionwith a record of the hill-and-valley type. The pin 7 can,

after the removal of the stylus 4, be secured to the stylus lever 3 inthe same manner as said stylus. The stud 8 has a stem 10 adapt ed to anopening in the arm 6 and secured therein by means of a clamping screw11, or other suitable means. In order to secure like results inreproduction With-either type of record, the'sapphire point 9 should,when it is used, be at the same distance from the fulcrum of the lever 3as the point of the stylus 4, when the latter is used, and in order toeffect this result I bend the arm as shown in Figs. 2 and 3, so that themember of said arm which carries the stud 8 shall be in a differenthorizontal plane from the member which carries the pin 7.

My invention is intended to'be used in connection with a machine havinga stylus 4 of a given length, hence as said stylus is always introducedinto the opening in the stylus lever .so as to seat against the bottomof said opening, its point is always at a given distance from thefulcrum of said stylus lever.

The diaphragm 2 retains its normal position, that is to say, a positionat right angles to the horizontal face of the record, whether the latteris of the lateral-wave or of the hill-and-valley type.

I claim The within described attachment for adapting for use with arecord of the hillandvalley type a sound box normally intended for usewith a record of the lateral wave type, said. attachment consisting ofan arm having at one end an upwardly projecting pin for entering thestylus receiving opening of the stylus lever of the sound box,

said arm being offset at the other end and carrying at that point adownwardly projecting stylus whereby the latter will engage thehill-and-v'alley record at the same distance from the fulcrum of thestylus lever as is the point of a lateral wave engaging stylus of normallength occupying its predetermined position in the stylus lever.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

HORACE SHEBLE.

\Vitnesses': I

KATE A. BEADLE, HAMILTON D. TURNER.

